Home / 79,280.07-109,405.65-43,469.97

Finding the Fourth Proportional to 79,280.07, 109,405.65 and 43,469.97

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Solution

The fourth proportional to 79,280.07, 109,405.65 and 43,469.97 is: 59,988.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,280.07 : 109,405.65 = 43,469.97 : x
  2. Step 2: Convert to fraction form
    79,280.07/109,405.65 = 43,469.97/x
  3. Step 3: Cross multiply
    79,280.07x = 109,405.65 × 43,469.97
  4. Step 4: Simplify right side
    79,280.07x = 4,755,860,323.33
  5. Step 5: Solve for x
    x = 4,755,860,323.33/79,280.07
  6. Step 6: Final answer
    x = 59,988.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.